Xcode 6.4 showing duplicate 'Simulators' with Unique Id

Question

Till yesterday, everything was normal with Xcode. It was showing simulators as :

But today, when I opened it, simulator list changed to :

Every simulator can be seen twice, name followed by a unique id. I have also observed that same named Simulator are also two different instances.

Can anyone help me, how to get rid of this ? Or how to reset it. It gives a weird look.

Any suggestion will be helpful.

Answer 1

I have an easier way to fix this.

Run the following:

xcrun simctl list devices | grep -v '^[-=]' | cut -d "(" -f2 | cut -d ")" -f1 | xargs -I {} xcrun simctl delete "{}"